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Reading a UTF8 CSV file with Python
I am trying to read a CSV file with accented characters with Python (only French and/or Spanish characters). Based on the Python 2.5 documentation for the csvreader ( http://docs.python.org/library/csv.html ), I came up with the following code to read the CSV file since the csvreader supports only A...
How do I purge a linux mail box with huge number of emails? [closed]
... result to an email. Now over the months I have accumulated a huge number of emails.
8 Answers
...
Peak detection in a 2D array
...e peaks using a local maximum filter. Here is the result on your first dataset of 4 paws:
I also ran it on the second dataset of 9 paws and it worked as well.
Here is how you do it:
import numpy as np
from scipy.ndimage.filters import maximum_filter
from scipy.ndimage.morphology import generate_...
Understanding garbage collection in .NET
...urce code. Note how the extra braces have no effect at all. And note how setting the variable to null makes no difference at all. It will always print "1". It now works the way you hope and expected it would work.
Which does leave with the task of explaining why it works so differently when you...
How to use 'cp' command to exclude a specific directory?
I want to copy all files in a directory except some files in a specific sub-directory.
I have noticed that cp command didn't have the --exclude option.
So, how can I achieve this?
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Assign multiple columns using := in data.table, by group
... editor after snippets, if snippets enabled
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Way to go from recursion to iteration
I've used recursion quite a lot on my many years of programming to solve simple problems, but I'm fully aware that sometimes you need iteration due to memory/speed problems.
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Most efficient method to groupby on an array of objects
...st collection = map.get(key);
if (!collection) {
map.set(key, [item]);
} else {
collection.push(item);
}
});
return map;
}
// example usage
const pets = [
{type:"Dog", name:"Spot"},
{type:"Cat", name:"Tiger"},
{type:"Dog", n...
Setting the MySQL root user password on OS X
I just installed MySQL on Mac OS X. The next step was setting the root user password, so I did this next:
23 Answers
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Why doesn't Java offer operator overloading?
...ment means to copy a reference to an existing value.
Consider instead:
b.set(1, 0); // initialize to real number '1'
a = b;
b.set(2, 0);
assert( !a.equals(b) ); // this assertion will fail
In C++, this copies the value, so the comparison will result not-equal. In Java, operator= performs refere...